Linda Lee Danvers
Supergirl's secret identity (Act No. 279/2, Aug 1961: "Supergirl's Secret Enemy!"; and others).
Prior to her adoption by Fred and Edna Danvers, she is simply known as Linda Lee at Midvale Orphanage (Act No. 252/2, May 1959: "The Supergirl from Krypton!"; and others).